Add checkbox to allow auto signing in with a saved password.

chrome/browser/extensions/api/settings_private/prefs_util.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/api/settings_private/prefs_util.h"
 
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 97 matching lines @@
       settings_private::PrefType::PREF_TYPE_BOOLEAN;
   (*s_whitelist)["homepage"] = settings_private::PrefType::PREF_TYPE_URL;
   (*s_whitelist)["homepage_is_newtabpage"] =
       settings_private::PrefType::PREF_TYPE_BOOLEAN;
   (*s_whitelist)["intl.app_locale"] =
       settings_private::PrefType::PREF_TYPE_STRING;
   (*s_whitelist)["net.network_prediction_options"] =
       settings_private::PrefType::PREF_TYPE_NUMBER;
   (*s_whitelist)["profile.password_manager_enabled"] =
       settings_private::PrefType::PREF_TYPE_BOOLEAN;
+  (*s_whitelist)["credentials_enable_autosignin"] =
+      settings_private::PrefType::PREF_TYPE_BOOLEAN;
   (*s_whitelist)["safebrowsing.enabled"] =
       settings_private::PrefType::PREF_TYPE_BOOLEAN;
   (*s_whitelist)["safebrowsing.extended_reporting_enabled"] =
       settings_private::PrefType::PREF_TYPE_BOOLEAN;
   (*s_whitelist)["search.suggest_enabled"] =
       settings_private::PrefType::PREF_TYPE_BOOLEAN;
   (*s_whitelist)["session.restore_on_startup"] =
       settings_private::PrefType::PREF_TYPE_NUMBER;
   (*s_whitelist)["session.startup_urls"] =
       settings_private::PrefType::PREF_TYPE_LIST;
@@ skipping 524 matching lines @@
 
 bool PrefsUtil::IsCrosSetting(const std::string& pref_name) {
 #if defined(OS_CHROMEOS)
   return CrosSettings::Get()->IsCrosSettings(pref_name);
 #else
   return false;
 #endif
 }
 
 }  // namespace extensions